Before I began making knives and learning about steel/heat treatment....I thought the WORLD of the 13C26 Leek I have. A stainless steel that sharpened up like 1095, and held it's edge on top of it all??? WOW. I was used to 440 type stuff. I have a set of Chicago Cutlery SS steak knives.....I swear they weren't heat treated at all! Same with the little Kuhn Rikon paring knives in our kitchen....they act like dead soft steel.
Once I started making knives, and learned that the 13C26 Leek was only hardened to 58-59, I had to get me a piece of AEB-L (13C26), make a knife, and try it at 62HRC. Holy toledo......what a completely different animal AEB-L is at 62 than at 58!!!! That's probably true about any steel....but I was really blown away by the difference in edge holding. The Leek does sharpen a bit easier, but the 62HRC Santoku I made holds its edge VERY well, and is still extremely easy to sharpen.
I would like to buy a Sea Eagle from Real Steel in 14c28n, but I hold off because I am afraid they harden that steel like Kershaw does....at 58-59...leaving performance on the table. I emailed Real Steel....have yet to hear back from them. I won't buy it unless it's 60-61.